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Explain the stages of protein synthesis

Transcription - occurs in the nucleus.

to prevent damage to the DNA, when a protein is required to be synthesised, a copy of that particular gene is encoded onto an mRNA (messenger RNA) molecule.T...

Answered by Simran K. • Biology tutor

3764 Views

Describe how the structure of glycogen allows it to perform its function and explain the advantages to animals of using glycogen as an energy store.

Glycogen is a polysaccharide composed of alpha glucose monomers which are a respiritory substrate involved in the production of energy (ATP). 1-6 glycosidic bonds between glucose allow glycogen to be bran...

Answered by Fraser A. • Biology tutor

44595 Views

Explain why a pH probe is required in a fermenter used for culturing micro-organisms.

It is important to monitor the pH of the fermenter to ensure this acidity can be detected and acid or alkali can be added accordingly to make sure the fermenter is at the optimum pH for the microorganisms...

Answered by Madeleine O. • Biology tutor

12530 Views

Give the key characteristic features of a prokaryotic cell.

Prokaryotic cells are usually 1-10 micrometers in size. Prokaryotic cells have a cell wall, which is usually complexed with a peptidoglycan layer. Prokayotic cells do not have a nucleus. Prokayotic cells ...

Answered by Branislav V. • Biology tutor

3293 Views

As one of the body's homeostatic mechanisms, blood glucose levels are controlled for by the hormone insulin. Explain how the regulation in blood glucose differs in a healthy individual and in somebody with type 1 Diabetes?

After the ingestion of a meal containing carbohydrate, glucose is released into the blood stream from the gut. An increase in blood glucose stimulates the secretion of the hormone, Insulin from the pancre...

Answered by Hannah S. • Biology tutor

4326 Views